H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/32 (2006.01) H04L 12/16 (2006.01)
Patent
CA 2328036
The invention discloses how to associate communications devices so as to carry out secure transactions over an untrusted network i.e., the Internet. The communications devices are assumed to be independently capable of communicating with an electronic commercial-like site managing a directory of legitimate users which all possess a token e.g., a chip-card. Then, whenever one user desires to carry out a secure transaction it first prepares it from a communications device featuring convenient interfaces e.g., a personal computer with large display and keyboard. When done, signature of the secure transaction must be obtained from another communications device through which the legitimate user is reachable and which is enabled with the token it possesses. When called from the commercial-like site the second communications device can thus, check, sign and transmit back to the commercial-like site the signed secure transaction where its final processing can go on. Therefore, the invention combines built-in features of standard communications devices to conveniently carry through elaborated secure transactions that would otherwise require added features such as large displays and keyboards to wireless mobile devices or chip-card reader to personal computers.
Barrett B.p.
International Business Machines Corporation
LandOfFree
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